Try Our Apps


The Best Internet Slang


[zen-l-ith] /ˈzɛn l ɪθ/
noun, Petrography.
a rock fragment foreign to the igneous rock in which it is embedded.
Also called inclusion.
Origin of xenolith
First recorded in 1900-05; xeno- + -lith
Related forms
xenolithic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
British Dictionary definitions for xenolith


a fragment of rock differing in origin, composition, structure, etc, from the igneous rock enclosing it
Derived Forms
xenolithic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for xenolith

1894, from xeno- "foreign, strange" + -lith "stone."

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
xenolith in Science
  (zěn'ə-lĭth', zē'nə-)   
A rock fragment foreign to the igneous mass in which it occurs. Xenoliths usually become incorporated into a cooling magma body when pieces of the rock into which the magma was injected break off and fall into it. Compare xenocryst.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for xenolith

Few English speakers likely know this word

Word Value for xenolith

Scrabble Words With Friends

Nearby words for xenolith